Table 3.

Diarrhoea and PCR result for protozoa (N = 528)

N= 528	Diarrhoea N = 344 positive (%)	No diarrhoea N = 184 positive (%)	Number positive	Prevalence ratio diarrhoea vs. no diarrhoea (95% CI)
Giardia duodenalis	27 (7.9%)	10 (5.4%)	37	1.44 (0.71–2.92)
Entamoeba histolytica	3 (0.87%)	1 (0.54%)	4	1.60 (0.17–15.3)
Entamoeba dispar	19 (5.5%)	19 (10.3%)	38	0.54 (0.29–0.98)
Cryptosporidium parvum	2 (0.6%)	0	2	not assessable
Blastocystis hominis (Microscopy)	83 (24.1%)	66 (35.9%)	149	0.67 (0.51–0.88)